Investments in Debt Securities and Notes Receivable - Additional Information (Details) $ in Thousands	1 Months Ended		3 Months Ended	9 Months Ended
	Dec. 31, 2022 USD ($) shares	Nov. 30, 2020 USD ($) extension_option shares	Sep. 30, 2024 debt_security extension_option Rate	Sep. 30, 2024 USD ($) extension_option Rate	Sep. 30, 2023 USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Investment in debt securities		$ 300,000
Debt securities, term		6 years
Debt securities, extension option | extension_option		2
Debt securities, extension term		1 year
Debt securities, period after which preferred dividends increase annually		6 years
Bridge loans, percent of notes held as mortgage receivables | Rate			71.00%	71.00%
Bridge loans, extension option | extension_option			2	2
Bridge loans, extension term				1 year
Proceeds from sale of notes receivable				$ 175,335	$ 134,064
Issuance and purchase of notes receivable				$ 739,702	$ 210,712
Number of debt securities past due or nonaccrual status | debt_security			1
Minimum
Schedule of Held-to-maturity Securities [Line Items]
Loan to value ratio				0.70
Maximum
Schedule of Held-to-maturity Securities [Line Items]
Loan to value ratio				0.80
Notes Receivable-Bridge Loans
Schedule of Held-to-maturity Securities [Line Items]
Bridge loans, original maturities				3 years
Principal amount of notes sold				$ 175,335
Proceeds from sale of notes receivable				175,335
Issuance and purchase of notes receivable				636,215
Payment of draws from interest holdbacks				$ 39,709
JCAP Series A Preferred Stock
Schedule of Held-to-maturity Securities [Line Items]
Investment in debt securities		$ 200,000
Investment in debt securities (in shares) | shares		200,000
Debt securities, dividend rate		8.50%
JCAP Series B Preferred Stock
Schedule of Held-to-maturity Securities [Line Items]
Investment in debt securities		$ 100,000
Investment in debt securities (in shares) | shares		100,000
JCAP Series D Preferred Stock
Schedule of Held-to-maturity Securities [Line Items]
Shares exchanged (in shares) | shares	300,000
Shares exchanged, value	$ 300,000